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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1618575Generated: November 2, 2026

Piperidine → 4-Chloro-5,7-difluoro-3-methyl-2-(piperidin-1-yl)quinoline

https://huagongshe.com/reaction/1618575

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
Reactant2,4-Dichloro-5,7-difluoro-3-methylquinolineHCID 59631040—
SolventIsopropanolHCID 3776—
Product4-Chloro-5,7-difluoro-3-methyl-2-(piperidin-1-yl)quinolineHCID 59631153—

Reaction Conditions

Temperature85 °C

Reaction Steps

The 2,4-dichloro-5,7-difluoro-3-methylquinoline (300 mg, 1.21 mmol) was dissolved in isopropanol (3 mL) and piperidine (0.120 mL, 1.21 mmol) was added to the sealed tube. The mixture was heated to 85° C. and stirred overnight. The reaction was then cooled and concentrated to dryness. The residue was then purified by medium pressure chromatography (silica, 0 to 40% DCM:hexane) to give 4-chloro-5,7-difluoro-3-methyl-2-(piperidin-1-yl)quinoline. Mass Spectrum (ESI) m/e=297.1 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08765940B2
Source datasetuspto-grants-2014_07
ORD IDord-2343679c411c4aacbc9992abc0a16ece
Source noteuspto-grants-2014_07